VSR 421: Regional Veterinary Surgery (2+1)

SALIVARY CALCULI

• Usually occur in stenson’s duct; rarely in wharton’s duct
• The size of calculi weighing individually 7-12 ounces have been recorded (mention in grams).
• An isolated calculus is oval; smooth and yellowish grey in colour.
• Composition of deposit 80-90% calcium carbonate and 9-10% organic matter.

Etiology

• Small particles with bacteria carrying into the duct, which cause fermentation in the saliva.
• Consequent deposition of lime on the foreign body.

Treatment

• First force the calculus into the mouth and then remove it.
• If it bulge into the oral cavity, incise the mucus membrane covering the calculus and take it away.
• Suture the wounds in the duct and skin separately,using a very fine needle.

Tumors

• The common tumors in pariotid glands are melanomata, which are found chiefly in grey horses.

Treatment

•  If the tumor is benign and circumscribed surgical excission is carried.
•  If it is malignant or diffuse , it is better not to interfere.